source4/ldap_server/ldap_server.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    LDAP server
   5
   6    Copyright (C) Andrew Tridgell 2005
   7    Copyright (C) Volker Lendecke 2004
   8    Copyright (C) Stefan Metzmacher 2004
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25 #include "lib/events/events.h"
  26 #include "auth/auth.h"
  27 #include "auth/credentials/credentials.h"
  28 #include "librpc/gen_ndr/ndr_samr.h"
  29 #include "../lib/util/dlinklist.h"
  30 #include "../lib/util/asn1.h"
  31 #include "ldap_server/ldap_server.h"
  32 #include "smbd/service_task.h"
  33 #include "smbd/service_stream.h"
  34 #include "smbd/service.h"
  35 #include "smbd/process_model.h"
  36 #include "lib/tls/tls.h"
  37 #include "lib/messaging/irpc.h"
  38 #include "lib/ldb/include/ldb.h"
  39 #include "lib/ldb/include/ldb_errors.h"
  40 #include "libcli/ldap/ldap.h"
  41 #include "libcli/ldap/ldap_proto.h"
  42 #include "system/network.h"
  43 #include "lib/socket/netif.h"
  44 #include "dsdb/samdb/samdb.h"
  45 #include "param/param.h"
  46 /*
  47   close the socket and shutdown a server_context
  48 */
  49 void ldapsrv_terminate_connection(struct ldapsrv_connection *conn,
  50                                          const char *reason)
  51 {
  52         packet_recv_disable(conn->packet);
  53         TALLOC_FREE(conn->packet);
  54         TALLOC_FREE(conn->sockets.tls);
  55         stream_terminate_connection(conn->connection, reason);
  56 }
  57
  58 /*
  59   handle packet errors
  60 */
  61 static void ldapsrv_error_handler(void *private_data, NTSTATUS status)
  62 {
  63         struct ldapsrv_connection *conn = talloc_get_type(private_data,
  64                                                           struct ldapsrv_connection);
  65         ldapsrv_terminate_connection(conn, nt_errstr(status));
  66 }
  67
  68 /*
  69   process a decoded ldap message
  70 */
  71 static void ldapsrv_process_message(struct ldapsrv_connection *conn,
  72                                     struct ldap_message *msg)
  73 {
  74         struct ldapsrv_call *call;
  75         NTSTATUS status;
  76         DATA_BLOB blob;
  77
  78         call = talloc(conn, struct ldapsrv_call);
  79         if (!call) {
  80                 ldapsrv_terminate_connection(conn, "no memory");
  81                 return;
  82         }
  83
  84         call->request = talloc_steal(call, msg);
  85         call->conn = conn;
  86         call->replies = NULL;
  87         call->send_callback = NULL;
  88         call->send_private = NULL;
  89
  90         /* make the call */
  91         status = ldapsrv_do_call(call);
  92         if (!NT_STATUS_IS_OK(status)) {
  93                 talloc_free(call);
  94                 return;
  95         }
  96
  97         blob = data_blob(NULL, 0);
  98
  99         if (call->replies == NULL) {
 100                 talloc_free(call);
 101                 return;
 102         }
 103
 104         /* build all the replies into a single blob */
 105         while (call->replies) {
 106                 DATA_BLOB b;
 107                 bool ret;
 108
 109                 msg = call->replies->msg;
 110                 if (!ldap_encode(msg, samba_ldap_control_handlers(), &b, call)) {
 111                         DEBUG(0,("Failed to encode ldap reply of type %d\n", msg->type));
 112                         talloc_free(call);
 113                         return;
 114                 }
 115
 116                 ret = data_blob_append(call, &blob, b.data, b.length);
 117                 data_blob_free(&b);
 118
 119                 talloc_set_name_const(blob.data, "Outgoing, encoded LDAP packet");
 120
 121                 if (!ret) {
 122                         talloc_free(call);
 123                         return;
 124                 }
 125
 126                 DLIST_REMOVE(call->replies, call->replies);
 127         }
 128
 129         packet_send_callback(conn->packet, blob,
 130                              call->send_callback, call->send_private);
 131         talloc_free(call);
 132         return;
 133 }
 134
 135 /*
 136   decode/process data
 137 */
 138 static NTSTATUS ldapsrv_decode(void *private_data, DATA_BLOB blob)
 139 {
 140         NTSTATUS status;
 141         struct ldapsrv_connection *conn = talloc_get_type(private_data,
 142                                                           struct ldapsrv_connection);
 143         struct asn1_data *asn1 = asn1_init(conn);
 144         struct ldap_message *msg = talloc(conn, struct ldap_message);
 145
 146         if (asn1 == NULL || msg == NULL) {
 147                 return NT_STATUS_NO_MEMORY;
 148         }
 149
 150         if (!asn1_load(asn1, blob)) {
 151                 talloc_free(msg);
 152                 talloc_free(asn1);
 153                 return NT_STATUS_NO_MEMORY;
 154         }
 155
 156         status = ldap_decode(asn1, samba_ldap_control_handlers(), msg);
 157         if (!NT_STATUS_IS_OK(status)) {
 158                 asn1_free(asn1);
 159                 return status;
 160         }
 161
 162         data_blob_free(&blob);
 163         talloc_steal(conn, msg);
 164         asn1_free(asn1);
 165
 166         ldapsrv_process_message(conn, msg);
 167         return NT_STATUS_OK;
 168 }
 169
 170 /*
 171  Idle timeout handler
 172 */
 173 static void ldapsrv_conn_idle_timeout(struct tevent_context *ev,
 174                                       struct tevent_timer *te,
 175                                       struct timeval t,
 176                                       void *private_data)
 177 {
 178         struct ldapsrv_connection *conn = talloc_get_type(private_data, struct ldapsrv_connection);
 179
 180         ldapsrv_terminate_connection(conn, "Timeout. No requests after bind");
 181 }
 182
 183 /*
 184   called when a LDAP socket becomes readable
 185 */
 186 void ldapsrv_recv(struct stream_connection *c, uint16_t flags)
 187 {
 188         struct ldapsrv_connection *conn =
 189                 talloc_get_type(c->private_data, struct ldapsrv_connection);
 190
 191         if (conn->limits.ite) { /* clean initial timeout if any */
 192                 talloc_free(conn->limits.ite);
 193                 conn->limits.ite = NULL;
 194         }
 195
 196         if (conn->limits.te) { /* clean idle timeout if any */
 197                 talloc_free(conn->limits.te);
 198                 conn->limits.te = NULL;
 199         }
 200
 201         packet_recv(conn->packet);
 202
 203         /* set idle timeout */
 204         conn->limits.te = event_add_timed(c->event.ctx, conn,
 205                                            timeval_current_ofs(conn->limits.conn_idle_time, 0),
 206                                            ldapsrv_conn_idle_timeout, conn);
 207 }
 208
 209 /*
 210   called when a LDAP socket becomes writable
 211 */
 212 static void ldapsrv_send(struct stream_connection *c, uint16_t flags)
 213 {
 214         struct ldapsrv_connection *conn =
 215                 talloc_get_type(c->private_data, struct ldapsrv_connection);
 216
 217         packet_queue_run(conn->packet);
 218 }
 219
 220 static void ldapsrv_conn_init_timeout(struct tevent_context *ev,
 221                                       struct tevent_timer *te,
 222                                       struct timeval t,
 223                                       void *private_data)
 224 {
 225         struct ldapsrv_connection *conn = talloc_get_type(private_data, struct ldapsrv_connection);
 226
 227         ldapsrv_terminate_connection(conn, "Timeout. No requests after initial connection");
 228 }
 229
 230 static int ldapsrv_load_limits(struct ldapsrv_connection *conn)
 231 {
 232         TALLOC_CTX *tmp_ctx;
 233         const char *attrs[] = { "configurationNamingContext", NULL };
 234         const char *attrs2[] = { "lDAPAdminLimits", NULL };
 235         struct ldb_message_element *el;
 236         struct ldb_result *res = NULL;
 237         struct ldb_dn *basedn;
 238         struct ldb_dn *conf_dn;
 239         struct ldb_dn *policy_dn;
 240         unsigned int i;
 241         int ret;
 242
 243         /* set defaults limits in case of failure */
 244         conn->limits.initial_timeout = 120;
 245         conn->limits.conn_idle_time = 900;
 246         conn->limits.max_page_size = 1000;
 247         conn->limits.search_timeout = 120;
 248
 249
 250         tmp_ctx = talloc_new(conn);
 251         if (tmp_ctx == NULL) {
 252                 return -1;
 253         }
 254
 255         basedn = ldb_dn_new(tmp_ctx, conn->ldb, NULL);
 256         if ( ! ldb_dn_validate(basedn)) {
 257                 goto failed;
 258         }
 259
 260         ret = ldb_search(conn->ldb, tmp_ctx, &res, basedn, LDB_SCOPE_BASE, attrs, NULL);
 261         if (ret != LDB_SUCCESS) {
 262                 goto failed;
 263         }
 264
 265         if (res->count != 1) {
 266                 goto failed;
 267         }
 268
 269         conf_dn = ldb_msg_find_attr_as_dn(conn->ldb, tmp_ctx, res->msgs[0], "configurationNamingContext");
 270         if (conf_dn == NULL) {
 271                 goto failed;
 272         }
 273
 274         policy_dn = ldb_dn_copy(tmp_ctx, conf_dn);
 275         ldb_dn_add_child_fmt(policy_dn, "CN=Default Query Policy,CN=Query-Policies,CN=Directory Service,CN=Windows NT,CN=Services");
 276         if (policy_dn == NULL) {
 277                 goto failed;
 278         }
 279
 280         ret = ldb_search(conn->ldb, tmp_ctx, &res, policy_dn, LDB_SCOPE_BASE, attrs2, NULL);
 281         if (ret != LDB_SUCCESS) {
 282                 goto failed;
 283         }
 284
 285         if (res->count != 1) {
 286                 goto failed;
 287         }
 288
 289         el = ldb_msg_find_element(res->msgs[0], "lDAPAdminLimits");
 290         if (el == NULL) {
 291                 goto failed;
 292         }
 293
 294         for (i = 0; i < el->num_values; i++) {
 295                 char policy_name[256];
 296                 int policy_value, s;
 297
 298                 s = sscanf((const char *)el->values[i].data, "%255[^=]=%d", policy_name, &policy_value);
 299                 if (ret != 2 || policy_value == 0)
 300                         continue;
 301
 302                 if (strcasecmp("InitRecvTimeout", policy_name) == 0) {
 303                         conn->limits.initial_timeout = policy_value;
 304                         continue;
 305                 }
 306                 if (strcasecmp("MaxConnIdleTime", policy_name) == 0) {
 307                         conn->limits.conn_idle_time = policy_value;
 308                         continue;
 309                 }
 310                 if (strcasecmp("MaxPageSize", policy_name) == 0) {
 311                         conn->limits.max_page_size = policy_value;
 312                         continue;
 313                 }
 314                 if (strcasecmp("MaxQueryDuration", policy_name) == 0) {
 315                         conn->limits.search_timeout = policy_value;
 316                         continue;
 317                 }
 318         }
 319
 320         return 0;
 321
 322 failed:
 323         DEBUG(0, ("Failed to load ldap server query policies\n"));
 324         talloc_free(tmp_ctx);
 325         return -1;
 326 }
 327
 328 /*
 329   initialise a server_context from a open socket and register a event handler
 330   for reading from that socket
 331 */
 332 static void ldapsrv_accept(struct stream_connection *c,
 333                            struct auth_session_info *session_info)
 334 {
 335         struct ldapsrv_service *ldapsrv_service =
 336                 talloc_get_type(c->private_data, struct ldapsrv_service);
 337         struct ldapsrv_connection *conn;
 338         struct cli_credentials *server_credentials;
 339         struct socket_address *socket_address;
 340         NTSTATUS status;
 341         int port;
 342
 343         conn = talloc_zero(c, struct ldapsrv_connection);
 344         if (!conn) {
 345                 stream_terminate_connection(c, "ldapsrv_accept: out of memory");
 346                 return;
 347         }
 348
 349         conn->packet      = NULL;
 350         conn->connection  = c;
 351         conn->service     = ldapsrv_service;
 352         conn->sockets.raw = c->socket;
 353         conn->lp_ctx      = ldapsrv_service->task->lp_ctx;
 354
 355         c->private_data   = conn;
 356
 357         socket_address = socket_get_my_addr(c->socket, conn);
 358         if (!socket_address) {
 359                 ldapsrv_terminate_connection(conn, "ldapsrv_accept: failed to obtain local socket address!");
 360                 return;
 361         }
 362         port = socket_address->port;
 363         talloc_free(socket_address);
 364
 365         if (port == 636) {
 366                 struct socket_context *tls_socket = tls_init_server(ldapsrv_service->tls_params, c->socket,
 367                                                                     c->event.fde, NULL);
 368                 if (!tls_socket) {
 369                         ldapsrv_terminate_connection(conn, "ldapsrv_accept: tls_init_server() failed");
 370                         return;
 371                 }
 372                 talloc_steal(c, tls_socket);
 373                 c->socket = tls_socket;
 374                 conn->sockets.tls = tls_socket;
 375
 376         } else if (port == 3268) /* Global catalog */ {
 377                 conn->global_catalog = true;
 378         }
 379         conn->packet = packet_init(conn);
 380         if (conn->packet == NULL) {
 381                 ldapsrv_terminate_connection(conn, "out of memory");
 382                 return;
 383         }
 384
 385         packet_set_private(conn->packet, conn);
 386         packet_set_socket(conn->packet, c->socket);
 387         packet_set_callback(conn->packet, ldapsrv_decode);
 388         packet_set_full_request(conn->packet, ldap_full_packet);
 389         packet_set_error_handler(conn->packet, ldapsrv_error_handler);
 390         packet_set_event_context(conn->packet, c->event.ctx);
 391         packet_set_fde(conn->packet, c->event.fde);
 392         packet_set_serialise(conn->packet);
 393
 394         if (conn->sockets.tls) {
 395                 packet_set_unreliable_select(conn->packet);
 396         }
 397
 398         /* Ensure we don't get packets until the database is ready below */
 399         packet_recv_disable(conn->packet);
 400
 401         server_credentials = cli_credentials_init(conn);
 402         if (!server_credentials) {
 403                 stream_terminate_connection(c, "Failed to init server credentials\n");
 404                 return;
 405         }
 406
 407         cli_credentials_set_conf(server_credentials, conn->lp_ctx);
 408         status = cli_credentials_set_machine_account(server_credentials, conn->lp_ctx);
 409         if (!NT_STATUS_IS_OK(status)) {
 410                 stream_terminate_connection(c, talloc_asprintf(conn, "Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status)));
 411                 return;
 412         }
 413         conn->server_credentials = server_credentials;
 414
 415         conn->session_info = talloc_move(conn, &session_info);
 416
 417         if (!NT_STATUS_IS_OK(ldapsrv_backend_Init(conn))) {
 418                 ldapsrv_terminate_connection(conn, "backend Init failed");
 419                 return;
 420         }
 421
 422         /* load limits from the conf partition */
 423         ldapsrv_load_limits(conn); /* should we fail on error ? */
 424
 425         /* register the server */
 426         irpc_add_name(c->msg_ctx, "ldap_server");
 427
 428         /* set connections limits */
 429         conn->limits.ite = event_add_timed(c->event.ctx, conn,
 430                                            timeval_current_ofs(conn->limits.initial_timeout, 0),
 431                                            ldapsrv_conn_init_timeout, conn);
 432
 433         packet_recv_enable(conn->packet);
 434
 435 }
 436
 437 static void ldapsrv_accept_nonpriv(struct stream_connection *c)
 438 {
 439         struct ldapsrv_service *ldapsrv_service = talloc_get_type_abort(
 440                 c->private_data, struct ldapsrv_service);
 441         struct auth_session_info *session_info;
 442         NTSTATUS status;
 443
 444         status = auth_anonymous_session_info(
 445                 c, ldapsrv_service->task->lp_ctx, &session_info);
 446         if (!NT_STATUS_IS_OK(status)) {
 447                 stream_terminate_connection(c, "failed to setup anonymous "
 448                                             "session info");
 449                 return;
 450         }
 451         ldapsrv_accept(c, session_info);
 452 }
 453
 454 static const struct stream_server_ops ldap_stream_nonpriv_ops = {
 455         .name                   = "ldap",
 456         .accept_connection      = ldapsrv_accept_nonpriv,
 457         .recv_handler           = ldapsrv_recv,
 458         .send_handler           = ldapsrv_send,
 459 };
 460
 461 /* The feature removed behind an #ifdef until we can do it properly
 462  * with an EXTERNAL bind. */
 463
 464 #define WITH_LDAPI_PRIV_SOCKET
 465
 466 #ifdef WITH_LDAPI_PRIV_SOCKET
 467 static void ldapsrv_accept_priv(struct stream_connection *c)
 468 {
 469         struct ldapsrv_service *ldapsrv_service = talloc_get_type_abort(
 470                 c->private_data, struct ldapsrv_service);
 471         struct auth_session_info *session_info;
 472
 473         session_info = system_session(ldapsrv_service->task->lp_ctx);
 474         if (!session_info) {
 475                 stream_terminate_connection(c, "failed to setup system "
 476                                             "session info");
 477                 return;
 478         }
 479         ldapsrv_accept(c, session_info);
 480 }
 481
 482 static const struct stream_server_ops ldap_stream_priv_ops = {
 483         .name                   = "ldap",
 484         .accept_connection      = ldapsrv_accept_priv,
 485         .recv_handler           = ldapsrv_recv,
 486         .send_handler           = ldapsrv_send,
 487 };
 488
 489 #endif
 490 /*
 491   add a socket address to the list of events, one event per port
 492 */
 493 static NTSTATUS add_socket(struct tevent_context *event_context,
 494                            struct loadparm_context *lp_ctx,
 495                            const struct model_ops *model_ops,
 496                            const char *address, struct ldapsrv_service *ldap_service)
 497 {
 498         uint16_t port = 389;
 499         NTSTATUS status;
 500         struct ldb_context *ldb;
 501
 502         status = stream_setup_socket(event_context, lp_ctx,
 503                                      model_ops, &ldap_stream_nonpriv_ops,
 504                                      "ipv4", address, &port,
 505                                      lp_socket_options(lp_ctx),
 506                                      ldap_service);
 507         if (!NT_STATUS_IS_OK(status)) {
 508                 DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
 509                          address, port, nt_errstr(status)));
 510         }
 511
 512         if (tls_support(ldap_service->tls_params)) {
 513                 /* add ldaps server */
 514                 port = 636;
 515                 status = stream_setup_socket(event_context, lp_ctx,
 516                                              model_ops,
 517                                              &ldap_stream_nonpriv_ops,
 518                                              "ipv4", address, &port,
 519                                              lp_socket_options(lp_ctx),
 520                                              ldap_service);
 521                 if (!NT_STATUS_IS_OK(status)) {
 522                         DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
 523                                  address, port, nt_errstr(status)));
 524                 }
 525         }
 526
 527         /* Load LDAP database, but only to read our settings */
 528         ldb = samdb_connect(ldap_service, ldap_service->task->event_ctx,
 529                             lp_ctx, system_session(lp_ctx));
 530         if (!ldb) {
 531                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 532         }
 533
 534         if (samdb_is_gc(ldb)) {
 535                 port = 3268;
 536                 status = stream_setup_socket(event_context, lp_ctx,
 537                                              model_ops,
 538                                              &ldap_stream_nonpriv_ops,
 539                                              "ipv4", address, &port,
 540                                              lp_socket_options(lp_ctx),
 541                                              ldap_service);
 542                 if (!NT_STATUS_IS_OK(status)) {
 543                         DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
 544                                  address, port, nt_errstr(status)));
 545                 }
 546         }
 547
 548         /* And once we are bound, free the tempoary ldb, it will
 549          * connect again on each incoming LDAP connection */
 550         talloc_unlink(ldap_service, ldb);
 551
 552         return status;
 553 }
 554
 555 /*
 556   open the ldap server sockets
 557 */
 558 static void ldapsrv_task_init(struct task_server *task)
 559 {
 560         char *ldapi_path;
 561 #ifdef WITH_LDAPI_PRIV_SOCKET
 562         char *priv_dir;
 563 #endif
 564         struct ldapsrv_service *ldap_service;
 565         NTSTATUS status;
 566         const struct model_ops *model_ops;
 567
 568         switch (lp_server_role(task->lp_ctx)) {
 569         case ROLE_STANDALONE:
 570                 task_server_terminate(task, "ldap_server: no LDAP server required in standalone configuration",
 571                                       false);
 572                 return;
 573         case ROLE_DOMAIN_MEMBER:
 574                 task_server_terminate(task, "ldap_server: no LDAP server required in member server configuration",
 575                                       false);
 576                 return;
 577         case ROLE_DOMAIN_CONTROLLER:
 578                 /* Yes, we want an LDAP server */
 579                 break;
 580         }
 581
 582         task_server_set_title(task, "task[ldapsrv]");
 583
 584         /* run the ldap server as a single process */
 585         model_ops = process_model_startup(task->event_ctx, "single");
 586         if (!model_ops) goto failed;
 587
 588         ldap_service = talloc_zero(task, struct ldapsrv_service);
 589         if (ldap_service == NULL) goto failed;
 590
 591         ldap_service->task = task;
 592
 593         ldap_service->tls_params = tls_initialise(ldap_service, task->lp_ctx);
 594         if (ldap_service->tls_params == NULL) goto failed;
 595
 596         if (lp_interfaces(task->lp_ctx) && lp_bind_interfaces_only(task->lp_ctx)) {
 597                 struct interface *ifaces;
 598                 int num_interfaces;
 599                 int i;
 600
 601                 load_interfaces(task, lp_interfaces(task->lp_ctx), &ifaces);
 602                 num_interfaces = iface_count(ifaces);
 603
 604                 /* We have been given an interfaces line, and been
 605                    told to only bind to those interfaces. Create a
 606                    socket per interface and bind to only these.
 607                 */
 608                 for(i = 0; i < num_interfaces; i++) {
 609                         const char *address = iface_n_ip(ifaces, i);
 610                         status = add_socket(task->event_ctx, task->lp_ctx, model_ops, address, ldap_service);
 611                         if (!NT_STATUS_IS_OK(status)) goto failed;
 612                 }
 613         } else {
 614                 status = add_socket(task->event_ctx, task->lp_ctx, model_ops,
 615                                     lp_socket_address(task->lp_ctx), ldap_service);
 616                 if (!NT_STATUS_IS_OK(status)) goto failed;
 617         }
 618
 619         ldapi_path = private_path(ldap_service, task->lp_ctx, "ldapi");
 620         if (!ldapi_path) {
 621                 goto failed;
 622         }
 623
 624         status = stream_setup_socket(task->event_ctx, task->lp_ctx,
 625                                      model_ops, &ldap_stream_nonpriv_ops,
 626                                      "unix", ldapi_path, NULL,
 627                                      lp_socket_options(task->lp_ctx),
 628                                      ldap_service);
 629         talloc_free(ldapi_path);
 630         if (!NT_STATUS_IS_OK(status)) {
 631                 DEBUG(0,("ldapsrv failed to bind to %s - %s\n",
 632                          ldapi_path, nt_errstr(status)));
 633         }
 634
 635 #ifdef WITH_LDAPI_PRIV_SOCKET
 636         priv_dir = private_path(ldap_service, task->lp_ctx, "ldap_priv");
 637         if (priv_dir == NULL) {
 638                 goto failed;
 639         }
 640         /*
 641          * Make sure the directory for the privileged ldapi socket exists, and
 642          * is of the correct permissions
 643          */
 644         if (!directory_create_or_exist(priv_dir, geteuid(), 0750)) {
 645                 task_server_terminate(task, "Cannot create ldap "
 646                                       "privileged ldapi directory", true);
 647                 return;
 648         }
 649         ldapi_path = talloc_asprintf(ldap_service, "%s/ldapi", priv_dir);
 650         talloc_free(priv_dir);
 651         if (ldapi_path == NULL) {
 652                 goto failed;
 653         }
 654
 655         status = stream_setup_socket(task->event_ctx, task->lp_ctx,
 656                                      model_ops, &ldap_stream_priv_ops,
 657                                      "unix", ldapi_path, NULL,
 658                                      lp_socket_options(task->lp_ctx),
 659                                      ldap_service);
 660         talloc_free(ldapi_path);
 661         if (!NT_STATUS_IS_OK(status)) {
 662                 DEBUG(0,("ldapsrv failed to bind to %s - %s\n",
 663                          ldapi_path, nt_errstr(status)));
 664         }
 665
 666 #endif
 667         return;
 668
 669 failed:
 670         task_server_terminate(task, "Failed to startup ldap server task", true);
 671 }
 672
 673
 674 NTSTATUS server_service_ldap_init(void)
 675 {
 676         return register_server_service("ldap", ldapsrv_task_init);
 677 }